Q. No.Biodiversity should be conserved as it plays a major role in many ecosystem services that nature provides. Such an argument is called:
1.
broadly utilitarian
2.
narrowly utilitarian
3.
ethical
4.
moral
The search for previously unknown compounds in organisms that have never been used in traditional medicine is known as:
| 1. | Biopiracy | 2. | Bioprospecting |
| 3. | Molecular pharming | 4. | Bioremediation |
What percentage of total oxygen in the earth’s atmosphere is produced by Amazon rainforest through photosynthesis?
| 1. | 50 | 2. | 40 |
| 3. | 30 | 4. | 20 |
Extinction of Stellar’s sea cow and passenger pigeon was due to:
| 1. | Habitat loss and fragmentation | 2. | Over exploitation |
| 3. | Invasion of alien species | 4. | Co-extinctions |
Loss of biodiversity may lead to all except:
| 1. | decline in plant production |
| 2. | increased resistance to environmental perturbance |
| 3. | increased variability in water use |
| 4. | increased variability in pest and disease cycle |
Which group, amongst the following, has the maximum percentage of species facing threat of extinction?
| 1. | Amphibians | 2. | Birds |
| 3. | Mammals | 4. | Gymnosperms |
Which of the following species of tiger has not gone extinct?
| 1. | Bali | 2. | Javan |
| 3. | Caspian | 4. | Siberian |
Which of the following is not a reason that accounts for greater biodiversity of tropics?
| 1. | availability of more solar energy |
| 2. | more niche specialization |
| 3. | more time for species diversification |
| 4. | large seasonal variations in environmental factors |
Although, India has only 2.4 % of world’s area, its share of global species diversity is about:
| 1. | 3% | 2. | 5% |
| 3. | 8% | 4. | 11% |
Approximately, what number of species have been identified, named and studied?
| 1. | 1.0 million | 2. | 1.5 million |
| 3. | 1.7 million | 4. | 2.0 million |
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